[Mark Gleeson]

Signalling probably, that said the system should have a generator

Problem with the Sligo line signalling and with all Mini CTC is if the power dies to bring the system back up requires a lot of hassle since it hasn't a clue where any trains are, since if a train moves when the power is off its not recorded

Mainline CTC reboots it knows where everything is in a few seconds, might not know what each train is but knows its there and trains can get moving very quickly